JP2895354B2 - Dry cleaning method - Google Patents
Dry cleaning methodInfo
- Publication number
- JP2895354B2 JP2895354B2 JP5168418A JP16841893A JP2895354B2 JP 2895354 B2 JP2895354 B2 JP 2895354B2 JP 5168418 A JP5168418 A JP 5168418A JP 16841893 A JP16841893 A JP 16841893A JP 2895354 B2 JP2895354 B2 JP 2895354B2
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- petroleum
- valve
- based solvent
- drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000005108 dry cleaning Methods 0.000 title claims description 10
- 239000002904 solvent Substances 0.000 claims description 63
- 239000003208 petroleum Substances 0.000 claims description 34
- 238000005406 washing Methods 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 238000002309 gasification Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は石油系溶剤を用いたドラ
イクリーニング方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry cleaning method using a petroleum solvent.
【０００２】[0002]
【従来の技術】従来の石油系の可燃性溶剤を用い、同一
ドラムで衣料を洗濯、乾燥するドライクリーニング工程
を図３に示すシステム図を用い概説する。先ずドア１か
ら衣料２を投入し、ドア１を閉じて運転を開始すると、
一般には次の順序で工程が進行する。 （１）溶剤タンク３から石油系溶剤４をバルブ５を介し
てポンプ６で汲揚げ、バルブ７、フィルタ８から成る経
路又はバルブ９から成る経路によって処理槽１０に石油
系溶剤４を必要量送り込む。 （２）処理ドラム１１をゆっくり回し、石油系溶剤４を
処理槽１０、ボタントラップ１２、バルブ１３、ポンプ
６、バルブ７、フィルタ８又はバルブ９から成る経路で
循環して衣料２を洗浄する。 （３）処理槽１０、ボタントラップ１２、バルブ１３、
ポンプ６、バルブ１４、蒸留器１５の経路で排液し、続
いて処理ドラム１１が高速回転して衣料２中の溶剤４を
遠心分離し、同様に排液する。2. Description of the Related Art A conventional dry cleaning process for washing and drying clothes on the same drum using a petroleum-based flammable solvent will be outlined with reference to a system diagram shown in FIG. First, put the clothing 2 from the door 1, close the door 1 and start driving,
Generally, the steps proceed in the following order. (1) A petroleum-based solvent 4 is pumped from a solvent tank 3 via a valve 5 by a pump 6, and a required amount of the petroleum-based solvent 4 is fed into a treatment tank 10 through a path including a valve 7 and a filter 8 or a path including a valve 9. . (2) The processing drum 11 is slowly rotated, and the clothing 2 is washed by circulating the petroleum-based solvent 4 through a path including the processing tank 10, the button trap 12, the valve 13, the pump 6, the valve 7, the filter 8, and the valve 9. (3) treatment tank 10, button trap 12, valve 13,
The liquid is discharged through the path of the pump 6, the valve 14, and the still 15, and then the processing drum 11 rotates at a high speed to centrifugally separate the solvent 4 in the garment 2, and similarly discharge the liquid.
【０００３】（４）前記（１）項、（２）項の工程を繰
り返す。 （５）処理槽１０、ボタントラップ１２、バルブ１３、
バルブ５の経路で溶剤タンク３に排液し、続いて処理ド
ラム１１が高速回転して衣料２中の石油系溶剤４を遠心
分離し、排液する。 （６）再び処理ドラム１１をゆっくり回し、ファン１
６、エアクーラ１７、エアヒータ１８から成るリカバリ
エアダクト１９と、処理槽１０の間を矢印２０の向きで
エアを循環し、衣料２を乾燥する。衣料２から蒸発した
石油系溶剤ガスは、エアクーラ１７で凝縮し、回収経路
２１を経て水分離器２２に入り、溶剤配管２３を通って
クリンタンク２４に入る。 （７）前記（３）項の工程で蒸留器１５に入った石油系
溶剤４は蒸発してコンデンサ２７で凝縮回収され、水分
離器２２、溶剤配管２３を通ってクリンタンク２４に入
り、オーバーフロー付仕切板２８から、溶剤タンク３に
戻る。なお、水分離器２２で分離した水は水配管２９に
よって系外へ排出する。また石油系溶剤を使用するドラ
イクリーニングで蒸留は行わず、フィルタ８の内部に多
孔質アルミナ等の脂肪酸吸着剤や活性炭等の脱色剤を充
填して、石油系溶剤４の浄化を図っているケースもあ
る。(4) The steps (1) and (2) are repeated. (5) Processing tank 10, button trap 12, valve 13,
The liquid is drained to the solvent tank 3 through the path of the valve 5, and then the processing drum 11 rotates at a high speed to centrifugally separate the petroleum-based solvent 4 in the garment 2 and drain the liquid. (6) The processing drum 11 is slowly rotated again, and the fan 1
6. Air is circulated in the direction of the arrow 20 between the recovery air duct 19 including the air cooler 17 and the air heater 18 and the processing tank 10 to dry the clothing 2. The petroleum-based solvent gas evaporated from the clothing 2 is condensed by the air cooler 17, enters the water separator 22 via the recovery path 21, and enters the clean tank 24 through the solvent pipe 23. (7) The petroleum-based solvent 4 that has entered the distiller 15 in the step (3) evaporates and is condensed and recovered by the condenser 27, enters the clean tank 24 through the water separator 22 and the solvent pipe 23, and overflows. From the attached partition plate 28, the process returns to the solvent tank 3. The water separated by the water separator 22 is discharged out of the system by a water pipe 29. A case in which distillation is not performed by dry cleaning using a petroleum-based solvent, and the interior of the filter 8 is filled with a fatty acid adsorbent such as porous alumina or a decolorizing agent such as activated carbon to purify the petroleum-based solvent 4. There is also.
【０００４】[0004]
【発明が解決しようとする課題】以上の如く同一ドラム
内で衣料を洗濯、乾燥する石油系溶剤を使用するドライ
クリーニング工程においては、ドラム等に残る前回の乾
燥残熱が起因となり、次工程の石油系溶剤による洗浄工
程に可燃性溶剤である石油系溶剤が蒸発し、爆発濃度範
囲に達する場合があった。本発明は前記従来の問題を解
決しようとするもので、従来の洗浄乾燥一体型石油系ド
ライクリーニング方法における洗浄工程で懸念される、
前回の乾燥残熱による石油系溶剤の蒸発を阻止しようと
するドライクリーニング方法を提供せんとするものであ
る。As described above, in the dry cleaning process using a petroleum-based solvent for washing and drying clothes in the same drum, residual heat remaining in the previous process remains on the drum, etc. The petroleum-based solvent, which is a flammable solvent, evaporates during the cleaning process using the petroleum-based solvent, and sometimes reaches the explosive concentration range. The present invention is intended to solve the conventional problems, there is a concern in the cleaning step in the conventional cleaning and drying integrated petroleum dry cleaning method,
It is an object of the present invention to provide a dry cleaning method for preventing evaporation of a petroleum-based solvent due to residual heat from previous drying.
【０００５】[0005]
【課題を解決するための手段】このため本発明は、洗
浄、脱液、乾燥の各工程を同一ドラム内で行う石油系溶
剤を用いたドライクリーニング方法において、次の石油
系溶剤による洗浄工程に入る前に、前回のドラム等の洗
浄系内に残る乾燥残熱を低沸点不燃溶剤を用いたシャワ
ー等による冷却により冷却して、石油系溶剤が洗浄時の
乾燥残熱によるガス化するのを抑えると共に、系内に不
燃溶剤ガスを充満させるようにしてなるもので、これを
課題解決のため手段とするものである。Accordingly, the present invention provides a dry cleaning method using a petroleum-based solvent in which the steps of washing, dewatering, and drying are performed in the same drum. Before entering, cool the residual dry heat remaining in the previous cleaning system such as the drum by cooling with a shower or the like using a low-boiling nonflammable solvent to prevent gasification of the petroleum-based solvent due to residual dry heat during cleaning. In addition to the suppression, the system is filled with a nonflammable solvent gas, which is used as a means for solving the problem.
【０００６】[0006]
【作用】次の石油系溶剤による洗浄工程に入る前に、低
沸点不燃溶剤であるパーフロロカーボン等のシャワー等
により、前回の乾燥工程の影響でドラム等に残る残熱
（６０〜８０℃）を冷却、除去することにより、石油系
溶剤による洗浄工程初期に起こる石油系溶剤の異常蒸発
を抑えることができ、石油系溶剤の爆発下限界濃度以下
にすることができる。Before starting the next washing step with a petroleum solvent, the residual heat (60-80 ° C.) remaining on the drum and the like due to the previous drying step is reduced by a shower of perfluorocarbon or the like, which is a low-boiling inflammable solvent. By cooling and removing, it is possible to suppress abnormal evaporation of the petroleum-based solvent which occurs at an early stage of the washing process with the petroleum-based solvent, and to reduce the concentration of the petroleum-based solvent to a lower limit than the lower explosive limit.
【０００７】[0007]
【実施例】以下本発明の実施例を図面について説明する
と、図１は本発明の方法を実施する第１実施例のドライ
クリーナを示す。図１において図３（従来法）との主要
な相違点は、第１の溶剤の収納タンク３と第２の溶剤の
収納タンク３ａが互いに独立して設けられており、それ
ぞれ専用バルブ５，５ａが設けられていることである。
また互いに溶解性を有しない不活性低沸点溶剤４と石油
系溶剤４ａを分解回収するための溶剤分離器３０と、溶
剤配管２３及び３１が逆止弁３２を介して蒸留器１５に
接続されていることと、処理槽１０からの排液配管中に
三方切換弁３３が追加されていることであるが、他は図
３とほぼ同一の構成となっている。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a first embodiment of a dry cleaner for carrying out the method of the present invention. In FIG. 1, the main difference from FIG. 3 (conventional method) is that a first solvent storage tank 3 and a second solvent storage tank 3a are provided independently of each other, and dedicated valves 5, 5a are provided respectively. Is provided.
Further, a solvent separator 30 for decomposing and recovering the inert low-boiling solvent 4 and the petroleum-based solvent 4a having no solubility with each other, and the solvent pipes 23 and 31 are connected to the still 15 via a check valve 32. 3 and a three-way switching valve 33 is added to the drainage pipe from the processing tank 10, but the other configuration is almost the same as that of FIG.
【０００８】次に以上の如く構成された第１実施例につ
いて作用を説明すると、図１において、第１の溶剤４を
不活性沸点溶剤、第２の溶剤４ａを石油系溶剤と仮定し
て、石油系溶剤による洗浄工程の前に、低沸点溶剤４
で、ドラム１１、処理槽１０等を冷却する方法を説明す
る。 （１）タンク３から低沸点溶剤４をバルブ５を介してポ
ンプ６により汲揚げ、バルブ７、フィルタ８又はバルブ
９の経路で処理槽１０に必要量をシャワーする。 （２）処理ドラム１１をゆっくり回し、低沸点溶剤４を
処理槽１０、ボタントラップ１２、バルブ１３、ポンプ
６、バルブ７、フィルタ８又はバルブ９から成る経路で
循環して各部の前回の乾燥残熱を吸収する。 （３）処理槽１０、ボタントラップ１２、バルブ１３、
ポンプ６、バルブ１４、蒸留器１５の経路で高速回転に
より排液する。 （４）以降は従来法と同様の石油系溶剤４ａによる洗
浄、乾燥を行う。Next, the operation of the first embodiment constructed as above will be described. In FIG. 1, assuming that the first solvent 4 is an inert boiling solvent and the second solvent 4a is a petroleum solvent, Before the washing process with petroleum solvent, low boiling solvent 4
Now, a method for cooling the drum 11, the processing tank 10, and the like will be described. (1) A low-boiling solvent 4 is pumped from a tank 3 by a pump 6 via a valve 5, and a required amount is showered in a processing tank 10 through a path of a valve 7, a filter 8 or a valve 9. (2) The processing drum 11 is rotated slowly, and the low-boiling solvent 4 is circulated through a path including the processing tank 10, the button trap 12, the valve 13, the pump 6, the valve 7, the filter 8, and the valve 9 so that the last dried residue of each part is circulated. Absorbs heat. (3) treatment tank 10, button trap 12, valve 13,
The liquid is discharged by high-speed rotation through the path of the pump 6, the valve 14, and the still 15 (4) Thereafter, washing and drying with the petroleum-based solvent 4a are performed as in the conventional method.
【０００９】次に図２は本発明の第２実施例を示す。図
２において図１の第１実施例との主要な相違点は、液置
換を連続的に行うために、処理槽１０と溶剤分離器３０
との間に、バルブ１３ａ、排液ポンプ６ａ、三方切換弁
３３を設け、連続的に溶剤の分離を行う経路を設けたこ
とと、各々の溶剤用に専用のフィルタ８，８ａを設け
て、洗浄汚液の浄化を濾過方式としたことにより、蒸留
再生システムが取除かれていることである。FIG. 2 shows a second embodiment of the present invention. In FIG. 2, the main difference from the first embodiment of FIG. 1 is that the processing tank 10 and the solvent separator 30
A valve 13a, a drainage pump 6a, and a three-way switching valve 33, a path for continuously separating the solvent is provided, and filters 8 and 8a dedicated to each solvent are provided. The fact that the purification of the cleaning waste liquid is performed by a filtration method eliminates the distillation regeneration system.
【００１０】[0010]
【発明の効果】以上詳細に説明した如く本発明は、次回
の石油系溶剤による洗浄工程の直前に低沸点不燃溶剤
で、処理槽、ドラム等に残る前回の乾燥残熱をシャワー
等により冷却することにより、石油系溶剤による洗浄工
程初期に発生する石油系溶剤の蒸発を抑えることがで
き、懸念される爆発事故を防止することができる。な
お、その他の手法として、同様の目的で石油系溶剤によ
る洗浄工程前に、ドライクリーナ本体内蔵のエアクーラ
等によるクールダウン法によっても同様の効果が得られ
ることは勿論である。As described above in detail, the present invention uses a low-boiling nonflammable solvent to cool the last drying residual heat remaining in a processing tank, drum or the like by a shower or the like immediately before the next washing step with a petroleum solvent. This can suppress the evaporation of the petroleum-based solvent generated at the initial stage of the cleaning process using the petroleum-based solvent, and can prevent a possible explosion accident. Of course, the same effect can be obtained by a cool-down method using an air cooler or the like built in the dry cleaner main body before the washing step with a petroleum solvent for the same purpose as the other method.
【図１】本発明の方法の第１実施例を示すドライクリー
ナの系統図である。FIG. 1 is a system diagram of a dry cleaner showing a first embodiment of the method of the present invention.
【図２】本発明の方法の第２実施例を示すドライクリー
ナの系統図である。FIG. 2 is a system diagram of a dry cleaner showing a second embodiment of the method of the present invention.
【図３】従来の洗浄・乾燥一体型石油ドライクリーナの
系統図である。FIG. 3 is a system diagram of a conventional washing and drying integrated petroleum dry cleaner.
２ 衣料 ３，３ａ 溶剤収納タンク ４ 低沸点溶剤 ４ａ 石油系溶剤 ５，５ａ 専用バルブ ８，８ａ フィルタ １０ 処理槽 １１ 処理ドラム １５ 蒸留器 １７ エアクーラ ２３，２３ａ，３１ 溶剤配管 ３０ 溶剤分離器 ３２，４１ 逆止弁 ３３，３３ａ 三方切換弁 2 Apparel 3,3a Solvent storage tank 4 Low boiling point solvent 4a Petroleum solvent 5,5a Exclusive valve 8,8a Filter 10 Processing tank 11 Processing drum 15 Distiller 17 Air cooler 23,23a, 31 Solvent piping 30 Solvent separator 32,41 Check valve 33, 33a Three-way switching valve
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−309197（ＪＰ，Ａ) 実開 平３−990（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) D06F 43/00 D06F 43/08 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-309197 (JP, A) JP-A-3-990 (JP, U) (58) Fields investigated (Int.Cl. 6 , DB name) D06F 43/00 D06F 43/08
Claims (1)
内で行う石油系溶剤を用いたドライクリーニング方法に
おいて、次の石油系溶剤による洗浄工程に入る前に、前
回のドラム等の洗浄系内に残る乾燥残熱を低沸点不燃溶
剤を用いたシャワー等による冷却により冷却して、石油
系溶剤が洗浄時の乾燥残熱によりガス化するのを抑える
と共に、系内に不燃溶剤ガスを充満させることを特徴と
するドライクリーニング方法。In a dry cleaning method using a petroleum-based solvent in which each of the steps of washing, dewatering, and drying are performed in the same drum, the previous cleaning of the drum or the like is performed before the next cleaning step using a petroleum-based solvent. The residual dry heat remaining in the system is cooled by cooling with a shower or the like using a low-boiling non-flammable solvent to suppress gasification of the petroleum-based solvent due to residual dry heat during washing, and the non-flammable solvent gas is introduced into the system. A dry cleaning method characterized by filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5168418A JP2895354B2 (en) | 1993-06-16 | 1993-06-16 | Dry cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5168418A JP2895354B2 (en) | 1993-06-16 | 1993-06-16 | Dry cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07688A JPH07688A (en) | 1995-01-06 |
| JP2895354B2 true JP2895354B2 (en) | 1999-05-24 |
Family
ID=15867763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5168418A Expired - Fee Related JP2895354B2 (en) | 1993-06-16 | 1993-06-16 | Dry cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2895354B2 (en) |
-
1993
- 1993-06-16 JP JP5168418A patent/JP2895354B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07688A (en) | 1995-01-06 |
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